Winding-machine for the manufacture of hollow insulating-cylinders for electrotechnical purposes



E. HAEFELY; WINDING MACHINE FOR THE MANUFACTURE OF HOLLOW INSULATING CYLINDERS FOR ELECTROTECHNICAL PURPOSES. r

Patented Jan. 20, 1920.

APPLICATION FILED OCT. 25, 1919.

f-uww UNITED STATES PATENT OFFICE.

EMIL HAEFEIJ Y, OF BASEL, SWITZERLAND.

WINDING-MACHINE FOR FIJI-IE MANUFACTURE OF 'I-IOLLOW INSULATING'CYI-JINDERS FOR ELECTROTECHNICAL PURPOSES.

-.Application file d October 25, 1919. Serial No. 333,344.

b To all whom it may concern:

Be it known that I, EMIL HAEFELY, a. citizen of theSWiss Republic, and resident of Basel, Switzerland, have invented newiand useful Improvements in Winding-Machines for the Manufacture of Hollow Insulating 4 Cylinders for Electrotechnical Purposes, of which che'following is a full, .clear and exact specification. a

' This invention relates to a winding machine for the manufacture of hollow insu lating cylinders for ele'ctro-technical purposes from a band of fibrous material, which is wound with an adhesive substance u on a winding roller between heating cylin ers and a pressure cylinder.

A machine of this kind must be so constructed as to be equally, suitable forthe manufacture of insulatin hollow cylinders of any size, from the sma lest to the largest. For small cylinders a small winding-roller is required for the winding, and for lar e cylinders a large one. According to t e diameter of this winding roller it is necessary on the one hand to arrange for the adjustment of the relative initial distances of the heating cylinders, since care must be taken that for both small and large winding rollers the'direction of pressure at the points of contact of the fabric with the heating cylinders remains approximately the same, so that in all cases the same effective pressure is applied, which pressure is equally homogeneous with both large and small hollow insulating cylinders. On the other hand, the employment of a small or large winding roller requires a drive-which provides for the spindle of the winding roller be- I tions are fulfilled by making the heating cylinders adjustable in each case, as regards their relative distance to suit the sizes of the winding rollers to be used, and the drive of the winding rollers, is effected by two vertical shafts with worms, in which on age Worm-wheels connected with the win ing rollers and of a diameter such that the teeth laterally engage with the worms. This machine thus forms a kind of universal winding machine, on which small or large hollow insulating cylinders can be made as required.

In the accompanyin drawing: 7 Figure 1 is a side e evation showing the construction of the winding machine when a small winding roller is used, and

Fig. 2 is a 'slmilar view showing the construction when a large winding roller is used.

a, b are the heating cylinders on which rests the winding roller 0 or 0 In Fig. 1, in which a small winding roller 0 is being used, the two heating cylinders a, b are ad- "justed' near together. In Fig. 2 in which a large winding roller 0 is used, the heating cylinders are placed correspondin ly far apart. This adjustmentof the heating cylinders a, b is effected by means of sliding carriers 03, which'move along'bars e, and can be adjusted by blocks f engaging in holes in the bars. The bars 6 can be ad usted longitudinallyin the cheeks 9 upon the side of theframe, by means of a worm and screw gear 71, so that when the adjustment of the heating cylinders at their proper distance apart has been effected, the winding roller can be placed exactly vertically under the' pressure cylinder 2'.

For driving the winding roller 0 or c to wind onthe band of fibrous material or paper as, two vertical driving shafts is (placed one behind the other in the drawing) are provided on the frame of the machine, on which is a wormvn; adjustable b a groove and key, and the position of whic on the height of the spindle of the winding roller in use can be adjusted by convenient means.

The spindle of the winding roller is provided at each endwith a worm-wheel n of a diameter suitable to that of the roller, and

this engages laterally with the teeth of the correspondin worm. This method of driving the winding roller allows of the easy insertion and removal of the latter.

The application and removal of the drive is effected by shifting the bars 6 by means of the screw spindle gear It.

Instead of making the worms m adjustable vertically, they may occupy the whole of the height of hespindles 7c.

What I claim is:

1. A winding machine for the manufacture of hollow insulating cylinders for electro-technical purposes, from a band of fibrous material supplied with an agglutinant, comprising two heating cylinders, a rotary winding rollerbetween them to wind the band upon it, a pressure cylinder to exert thereon the necessary pressure for the Winding operation, means for adjusting the relative distance apart of the heating cylinders according to the size of the winding roller to be employed, vertical driving shafts, worms thereon, worm-wheels carried b the winding roller, and means for laterally engaging said worm-wheels into their respective worms, substantially as described.

2. A winding machine for the manufacture of hollow insulating cylinders for electrotechnical purposes, from a band of fibrous material supplied with an agglutinant, comprising two heating cylinders, a rotary Winding roller between them to wind the band upon it, a pressure cylinder to exert thereon the necessary pressure for the winding operation, means for adjusting the relative distance apart of the heating cylinders according to the size of the winding roller to be employed, vertical driving shafts, worms thereon, worm-wheels carried by the winding roller, and means for shifting the adjusted heating cylinders together with the winding roller as a whole for laterally en- L EMIL HAEFELY.

Witnesses:

H. H. DICK, AMAND BRANN. 

